Ever wonder how we all agreed on what time it is? It wasn’t always this simple. In the 1800s, America was a chaotic patchwork of local clocks—until the railroad, telegraph, and even banks demanded a solution. From train collisions to the Greenwich Observatory’s global influence, we’ll explore how time became a shared system and why it still matters today. This isn’t just history—it’s a reminder of how collaboration can solve the big challenges we face.